Apomixis and heterogamy in rose rootstocks (Rosa canina L.)

Kroon, G. H.; Zeilinga, A. E.

doi:10.1007/bf00035877

Cited by 19 publications

(9 citation statements)

References 7 publications

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“…As expected, matroclinal inheritance (offspring very similar to seed parent) for various morphological traits has been described in progenies derived from interspecific crosses (Gustafsson, 1944;Kroon and Zeilinga, 1974;Werlemark et al, 1999;Werlemark and Nybom, 2001). However, matroclinal inheritance may also stem from apomixis, which has been reported to occur occasionally in some dog-rose species (Gustafsson, 1944;Kroon and Zeilinga, 1974;Wisseman and Hellwig, 1997;Werlemark, 2000).…”

Section: Introductionsupporting

confidence: 59%

Microsatellite DNA marker inheritance indicates preferential pairing between two highly homologous genomes in polyploid and hemisexual dog-roses, Rosa L. Sect. Caninae DC.

Nybom

Esselink²,

Werlemark

et al. 2003

Heredity

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According to previous cytological evidence, the hemisexual dog-rose species, Rosa sect. Caninae, transmit only seven chromosomes (derived from seven bivalents) through their pollen grains, whereas egg cells contain 21, 28 or 35 chromosomes (derived from seven bivalents and 14, 21 or 28 univalents) depending on ploidy level. Two sets of reciprocal pairwise interspecific crosses involving the pentaploid species pair R. dumalis and R. rubiginosa, and the pentaploid/tetraploid species pair R. sherardii and R. villosa, were analysed for 13 and 12 microsatellite DNA loci, respectively. Single loci were represented by a maximum of three simultaneously occurring alleles in R. villosa, and four alleles in the other three parental plants. In the experimentally derived offspring, the theoretical maximum of five alleles was found for only one locus in the pentaploid progenies. Microsatellite DNA allele composition was identical with that of the maternal parent in 10 offspring plants, which were probably derived through apomixis. Almost all microsatellite DNA alleles were shared with the maternal parent also in the remaining offspring, but 1-4 alleles shared only with the paternal parent, indicating sexual seed formation. Analysis of quantitative peak differences allowed a tentative estimation of allelic configuration in the individual plants, and suggested that bivalent formation preferentially takes place between chromosomes that consistently share the same microsatellite alleles and therefore appear to be highly homologous. Moreover, alleles that were shared between the species in each cross combination comparatively often appear to reside on the bivalent-forming chromosomes, whereas species-specific alleles instead occur comparatively often on the univalent-forming chromosomes and are therefore inherited through the maternal parent only. Recombination then takes place between very similar genomes also in interspecific crosses, resulting in a reproduction system that is essentially a mixture between apomixis and selfing.

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Section: Introductionsupporting

confidence: 59%

Microsatellite DNA marker inheritance indicates preferential pairing between two highly homologous genomes in polyploid and hemisexual dog-roses, Rosa L. Sect. Caninae DC.

Nybom

Esselink²,

Werlemark

et al. 2003

Heredity

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“…The male meiosis often fails, and pollen viability is reported to be very low (3). The unequal distribution of the meiotic chromosomes is expected to result in matroclinal inheritance of morphological characters, as also demonstrated in several reports (4,5,6). Material for the Balsgard rose hip domestication project was collected from wild species in the Nordic countries to evaluate their amenability to cultivation.…”

Section: Introductionsupporting

confidence: 62%

Variation and Inheritance in Hemisexual Dogroses,RosaSectionCaninae

Werlemark

Nybom

Olsson

et al. 2000

Biotechnology & Biotechnological Equipment

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“…Täckholm (1920) assumed that dogroses could not maintain equal multiples of seven when the plants propagated in a "sexual way" and stated that only plants originating from apomictic propagation could have inherited the correct chromosome number. Kroon and Zeilinga (1974) reported that up to onethird of the progenies from crosses between so called Edelcaninas (commercial root stocks, section Caninae) as seed parents and pollen donors from different Rosa sections were of apomictic origin. It is unfortunately not clear what morphological characters this statement was based upon.…”

Section: Discussionmentioning

confidence: 99%

“…Two possible explanations for this inheritance could be: (1) the skewed distribution of chromosomes caused by the canina meiosis and (2) apomixis, where seedset occurs without prior fertilization. As the offspring plants often resemble their respective seed parents regardless of pollen donor identity, several authors have indeed suggested the occurrence of apomixis (Täckholm 1920;Kroon and Zeilinga 1974;Wissemann and Hellwig 1997), but the opposite view has also been expressed (Fagerlind 1940;Gustafsson 1944;Cole and Melton 1986). A study performed by Werlemark et al (1999) on a pair of reciprocal crosses between two species within the Caninae section showed matroclinal inheritance of both morphological and molecular markers.…”

Section: Introductionmentioning

confidence: 96%

Evidence of apomixis in hemisexual dogroses, Rosa section Caninae

Werlemark¹

2000

Sexual Plant Reproduction

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All members of Rosa section Caninae, dogroses are polyploid and characterized by their unbalanced meiosis, which in most cases leads to a pronounced morphological influence from the maternal parent. In a previous investigation on a pair of reciprocal crosses between two species in this section, Rosa dumalis and R. rubiginosa (2n=35), nine offspring plants (approximately 10%) did not receive any of the 21 RAPD markers present in the respective pollen parent. This was interpreted as a possible occurrence of apomixis. These nine plants have now been subjected to a further study with additional markers. Thirteen new RAPD markers showed the same result as in the previous investigation: none of the nine plants inherited any of the pollen donor markers. The reproducibility of the RAPD markers was checked by mixing DNA samples to obtain a series of artificial hybrids between the two parent plants. Twelve RAPD markers gave the expected result, whereas one marker appeared only 50% of the time. In addition, pollen viability, mean number of seeds per hip, mean seed weight, and mean weight of fruit flesh per hip have been studied on the four progeny groups: R. dumalis×R. rubiginosa plants which received pollen donor markers (PM plants), R. dumalis×R. rubiginosa plants which did not receive any pollen donor markers (NPM plants), R. rubiginosa×R. dumalis PM plants and R. rubiginosa×R. dumalis NPM plants. A canonical discriminant analysis based on these four reproductive characters separated the four progeny groups. There were significant differences between the two PM groups in all investigated characters, and also between the PM and the NPM groups in pollen viability. The result from the RAPD markers together with the differences in pollen viability between the PM and NPM progeny groups is taken as an indication that apomixis occurs within the Caninae section.

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Apomixis and heterogamy in rose rootstocks (Rosa canina L.)

Cited by 19 publications

References 7 publications

Microsatellite DNA marker inheritance indicates preferential pairing between two highly homologous genomes in polyploid and hemisexual dog-roses, Rosa L. Sect. Caninae DC.

Microsatellite DNA marker inheritance indicates preferential pairing between two highly homologous genomes in polyploid and hemisexual dog-roses, Rosa L. Sect. Caninae DC.

Variation and Inheritance in Hemisexual Dogroses,RosaSectionCaninae

Evidence of apomixis in hemisexual dogroses, Rosa section Caninae

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